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remove cajun library

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jacob1 2016-01-25 23:53:00 -05:00
parent 855d735b50
commit ac03162cc2
7 changed files with 0 additions and 1749 deletions
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403
src/cajun/elements.cpp
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@ -1,403 +0,0 @@
/******************************************************************************
Copyright (c) 2009-2010, Terry Caton
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of the projecct nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
******************************************************************************/
#include <cassert>
#include <algorithm>
#include <map>
#include "visitor.h"
#include "reader.h"
/*
TODO:
* better documentation
*/
namespace json
{
Exception::Exception(const std::string& sMessage) :
std::runtime_error(sMessage) {}
/////////////////////////
// UnknownElement members
class UnknownElement::Imp
{
public:
virtual ~Imp() {}
virtual Imp* Clone() const = 0;
virtual bool Compare(const Imp& imp) const = 0;
virtual void Accept(ConstVisitor& visitor) const = 0;
virtual void Accept(Visitor& visitor) = 0;
};
template <typename ElementTypeT>
class UnknownElement::Imp_T : public UnknownElement::Imp
{
public:
Imp_T(const ElementTypeT& element) : m_Element(element) {}
virtual Imp* Clone() const { return new Imp_T<ElementTypeT>(*this); }
virtual void Accept(ConstVisitor& visitor) const { visitor.Visit(m_Element); }
virtual void Accept(Visitor& visitor) { visitor.Visit(m_Element); }
virtual bool Compare(const Imp& imp) const
{
ConstCastVisitor_T<ElementTypeT> castVisitor;
imp.Accept(castVisitor);
return castVisitor.m_pElement &&
m_Element == *castVisitor.m_pElement;
}
private:
ElementTypeT m_Element;
};
class UnknownElement::ConstCastVisitor : public ConstVisitor
{
virtual void Visit(const Array& array) {}
virtual void Visit(const Object& object) {}
virtual void Visit(const Number& number) {}
virtual void Visit(const String& string) {}
virtual void Visit(const Boolean& boolean) {}
virtual void Visit(const Null& null) {}
};
template <typename ElementTypeT>
class UnknownElement::ConstCastVisitor_T : public ConstCastVisitor
{
public:
ConstCastVisitor_T() : m_pElement(0) {}
virtual void Visit(const ElementTypeT& element) { m_pElement = &element; } // we don't know what this is, but it overrides one of the base's no-op functions
const ElementTypeT* m_pElement;
};
class UnknownElement::CastVisitor : public Visitor
{
virtual void Visit(Array& array) {}
virtual void Visit(Object& object) {}
virtual void Visit(Number& number) {}
virtual void Visit(String& string) {}
virtual void Visit(Boolean& boolean) {}
virtual void Visit(Null& null) {}
};
template <typename ElementTypeT>
class UnknownElement::CastVisitor_T : public CastVisitor
{
public:
CastVisitor_T() : m_pElement(0) {}
virtual void Visit(ElementTypeT& element) { m_pElement = &element; } // we don't know what this is, but it overrides one of the base's no-op functions
ElementTypeT* m_pElement;
};
UnknownElement::UnknownElement() : m_pImp( new Imp_T<Null>( Null() ) ) {}
UnknownElement::UnknownElement(const UnknownElement& unknown) : m_pImp( unknown.m_pImp->Clone()) {}
UnknownElement::UnknownElement(const Object& object) : m_pImp( new Imp_T<Object>(object) ) {}
UnknownElement::UnknownElement(const Array& array) : m_pImp( new Imp_T<Array>(array) ) {}
UnknownElement::UnknownElement(const Number& number) : m_pImp( new Imp_T<Number>(number) ) {}
UnknownElement::UnknownElement(const Boolean& boolean) : m_pImp( new Imp_T<Boolean>(boolean) ) {}
UnknownElement::UnknownElement(const String& string) : m_pImp( new Imp_T<String>(string) ) {}
UnknownElement::UnknownElement(const Null& null) : m_pImp( new Imp_T<Null>(null) ) {}
UnknownElement::~UnknownElement() { delete m_pImp; }
UnknownElement::operator const Object& () const { return CastTo<Object>(); }
UnknownElement::operator const Array& () const { return CastTo<Array>(); }
UnknownElement::operator const Number& () const { return CastTo<Number>(); }
UnknownElement::operator const Boolean& () const { return CastTo<Boolean>(); }
UnknownElement::operator const String& () const { return CastTo<String>(); }
UnknownElement::operator const Null& () const { return CastTo<Null>(); }
UnknownElement::operator Object& () { return ConvertTo<Object>(); }
UnknownElement::operator Array& () { return ConvertTo<Array>(); }
UnknownElement::operator Number& () { return ConvertTo<Number>(); }
UnknownElement::operator Boolean& () { return ConvertTo<Boolean>(); }
UnknownElement::operator String& () { return ConvertTo<String>(); }
UnknownElement::operator Null& () { return ConvertTo<Null>(); }
UnknownElement& UnknownElement::operator = (const UnknownElement& unknown)
{
// always check for this
if (&unknown != this)
{
// we might be copying from a subtree of ourselves. delete the old imp
// only after the clone operation is complete. yes, this could be made
// more efficient, but isn't worth the complexity
Imp* pOldImp = m_pImp;
m_pImp = unknown.m_pImp->Clone();
delete pOldImp;
}
return *this;
}
UnknownElement& UnknownElement::operator[] (const std::string& key)
{
// the people want an object. make us one if we aren't already
Object& object = ConvertTo<Object>();
return object[key];
}
const UnknownElement& UnknownElement::operator[] (const std::string& key) const
{
// throws if we aren't an object
const Object& object = CastTo<Object>();
return object[key];
}
UnknownElement& UnknownElement::operator[] (size_t index)
{
// the people want an array. make us one if we aren't already
Array& array = ConvertTo<Array>();
return array[index];
}
const UnknownElement& UnknownElement::operator[] (size_t index) const
{
// throws if we aren't an array
const Array& array = CastTo<Array>();
return array[index];
}
template <typename ElementTypeT>
const ElementTypeT& UnknownElement::CastTo() const
{
ConstCastVisitor_T<ElementTypeT> castVisitor;
m_pImp->Accept(castVisitor);
if (castVisitor.m_pElement == 0)
throw Exception("Bad cast");
return *castVisitor.m_pElement;
}
template <typename ElementTypeT>
ElementTypeT& UnknownElement::ConvertTo()
{
CastVisitor_T<ElementTypeT> castVisitor;
m_pImp->Accept(castVisitor);
if (castVisitor.m_pElement == 0)
{
// we're not the right type. fix it & try again
*this = ElementTypeT();
m_pImp->Accept(castVisitor);
}
return *castVisitor.m_pElement;
}
void UnknownElement::Accept(ConstVisitor& visitor) const { m_pImp->Accept(visitor); }
void UnknownElement::Accept(Visitor& visitor) { m_pImp->Accept(visitor); }
bool UnknownElement::operator == (const UnknownElement& element) const
{
return m_pImp->Compare(*element.m_pImp);
}
//////////////////
// Object members
Object::Member::Member(const std::string& nameIn, const UnknownElement& elementIn) :
name(nameIn), element(elementIn) {}
bool Object::Member::operator == (const Member& member) const
{
return name == member.name &&
element == member.element;
}
class Object::Finder : public std::unary_function<Object::Member, bool>
{
public:
Finder(const std::string& name) : m_name(name) {}
bool operator () (const Object::Member& member) {
return member.name == m_name;
}
private:
std::string m_name;
};
Object::iterator Object::Begin() { return m_Members.begin(); }
Object::iterator Object::End() { return m_Members.end(); }
Object::const_iterator Object::Begin() const { return m_Members.begin(); }
Object::const_iterator Object::End() const { return m_Members.end(); }
size_t Object::Size() const { return m_Members.size(); }
bool Object::Empty() const { return m_Members.empty(); }
Object::iterator Object::Find(const std::string& name)
{
return std::find_if(m_Members.begin(), m_Members.end(), Finder(name));
}
Object::const_iterator Object::Find(const std::string& name) const
{
return std::find_if(m_Members.begin(), m_Members.end(), Finder(name));
}
Object::iterator Object::Insert(const Member& member)
{
return Insert(member, End());
}
Object::iterator Object::Insert(const Member& member, iterator itWhere)
{
iterator it = Find(member.name);
if (it != m_Members.end())
throw Exception(std::string("Object member already exists: ") + member.name);
it = m_Members.insert(itWhere, member);
return it;
}
Object::iterator Object::Erase(iterator itWhere)
{
return m_Members.erase(itWhere);
}
UnknownElement& Object::operator [](const std::string& name)
{
iterator it = Find(name);
if (it == m_Members.end())
{
Member member(name);
it = Insert(member, End());
}
return it->element;
}
const UnknownElement& Object::operator [](const std::string& name) const
{
const_iterator it = Find(name);
if (it == End())
throw Exception(std::string("Object member not found: ") + name);
return it->element;
}
void Object::Clear()
{
m_Members.clear();
}
bool Object::operator == (const Object& object) const
{
return m_Members == object.m_Members;
}
/////////////////
// Array members
Array::iterator Array::Begin() { return m_Elements.begin(); }
Array::iterator Array::End() { return m_Elements.end(); }
Array::const_iterator Array::Begin() const { return m_Elements.begin(); }
Array::const_iterator Array::End() const { return m_Elements.end(); }
Array::iterator Array::Insert(const UnknownElement& element, iterator itWhere)
{
return m_Elements.insert(itWhere, element);
}
Array::iterator Array::Insert(const UnknownElement& element)
{
return Insert(element, End());
}
Array::iterator Array::Erase(iterator itWhere)
{
return m_Elements.erase(itWhere);
}
void Array::Resize(size_t newSize)
{
m_Elements.resize(newSize);
}
size_t Array::Size() const { return m_Elements.size(); }
bool Array::Empty() const { return m_Elements.empty(); }
UnknownElement& Array::operator[] (size_t index)
{
size_t nMinSize = index + 1; // zero indexed
if (m_Elements.size() < nMinSize)
m_Elements.resize(nMinSize);
return m_Elements[index];
}
const UnknownElement& Array::operator[] (size_t index) const
{
if (index >= m_Elements.size())
throw Exception("Array out of bounds");
return m_Elements[index];
}
void Array::Clear() {
m_Elements.clear();
}
bool Array::operator == (const Array& array) const
{
return m_Elements == array.m_Elements;
}
//////////////////
// Null members
bool Null::operator == (const Null& trivial) const
{
return true;
}
} // End namespace

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src/cajun/elements.h
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@ -1,337 +0,0 @@
/******************************************************************************
Copyright (c) 2009-2010, Terry Caton
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of the projecct nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
******************************************************************************/
#pragma once
#include <deque>
#include <list>
//#include <iterator>
#include <string>
#include <stdexcept>
#include "Config.h"
/*
TODO:
* better documentation (doxygen?)
* Unicode support
* parent element accessors
*/
namespace json
{
namespace Version
{
enum { MAJOR = 2 };
enum { MINOR = 0 };
enum {ENGINEERING = 2 };
}
/////////////////////////////////////////////////
// forward declarations (more info further below)
class Visitor;
class ConstVisitor;
template <typename ValueTypeT>
class TrivialType_T;
typedef TrivialType_T<double> Number;
typedef TrivialType_T<bool> Boolean;
typedef TrivialType_T<std::string> String;
class Object;
class Array;
class Null;
/////////////////////////////////////////////////////////////////////////
// Exception - base class for all JSON-related runtime errors
class Exception : public std::runtime_error
{
public:
Exception(const std::string& sMessage);
};
/////////////////////////////////////////////////////////////////////////
// UnknownElement - provides a typesafe surrogate for any of the JSON-
// sanctioned element types. This class allows the Array and Object
// class to effectively contain a heterogeneous set of child elements.
// The cast operators provide convenient implicit downcasting, while
// preserving dynamic type safety by throwing an exception during a
// a bad cast.
// The object & array element index operators (operators [std::string]
// and [size_t]) provide convenient, quick access to child elements.
// They are a logical extension of the cast operators. These child
// element accesses can be chained together, allowing the following
// (when document structure is well-known):
// String str = objInvoices[1]["Customer"]["Company"];
class UnknownElement
{
public:
UnknownElement();
UnknownElement(const UnknownElement& unknown);
UnknownElement(const Object& object);
UnknownElement(const Array& array);
UnknownElement(const Number& number);
UnknownElement(const Boolean& boolean);
UnknownElement(const String& string);
UnknownElement(const Null& null);
~UnknownElement();
UnknownElement& operator = (const UnknownElement& unknown);
// implicit cast to actual element type. throws on failure
operator const Object& () const;
operator const Array& () const;
operator const Number& () const;
operator const Boolean& () const;
operator const String& () const;
operator const Null& () const;
// implicit cast to actual element type. *converts* on failure, and always returns success
operator Object& ();
operator Array& ();
operator Number& ();
operator Boolean& ();
operator String& ();
operator Null& ();
// provides quick access to children when real element type is object
UnknownElement& operator[] (const std::string& key);
const UnknownElement& operator[] (const std::string& key) const;
// provides quick access to children when real element type is array
UnknownElement& operator[] (size_t index);
const UnknownElement& operator[] (size_t index) const;
// implements visitor pattern
void Accept(ConstVisitor& visitor) const;
void Accept(Visitor& visitor);
// tests equality. first checks type, then value if possible
bool operator == (const UnknownElement& element) const;
private:
class Imp;
template <typename ElementTypeT>
class Imp_T;
class CastVisitor;
class ConstCastVisitor;
template <typename ElementTypeT>
class CastVisitor_T;
template <typename ElementTypeT>
class ConstCastVisitor_T;
template <typename ElementTypeT>
const ElementTypeT& CastTo() const;
template <typename ElementTypeT>
ElementTypeT& ConvertTo();
Imp* m_pImp;
};
/////////////////////////////////////////////////////////////////////////////////
// Array - mimics std::deque<UnknownElement>. The array contents are effectively
// heterogeneous thanks to the ElementUnknown class. push_back has been replaced
// by more generic insert functions.
class Array
{
public:
typedef std::deque<UnknownElement> Elements;
typedef Elements::iterator iterator;
typedef Elements::const_iterator const_iterator;
iterator Begin();
iterator End();
const_iterator Begin() const;
const_iterator End() const;
iterator Insert(const UnknownElement& element, iterator itWhere);
iterator Insert(const UnknownElement& element);
iterator Erase(iterator itWhere);
void Resize(size_t newSize);
void Clear();
size_t Size() const;
bool Empty() const;
UnknownElement& operator[] (size_t index);
const UnknownElement& operator[] (size_t index) const;
bool operator == (const Array& array) const;
private:
Elements m_Elements;
};
/////////////////////////////////////////////////////////////////////////////////
// Object - mimics std::map<std::string, UnknownElement>. The member value
// contents are effectively heterogeneous thanks to the UnknownElement class
class Object
{
public:
struct Member {
Member(const std::string& nameIn = std::string(), const UnknownElement& elementIn = UnknownElement());
bool operator == (const Member& member) const;
std::string name;
UnknownElement element;
};
typedef std::list<Member> Members; // map faster, but does not preserve order
typedef Members::iterator iterator;
typedef Members::const_iterator const_iterator;
bool operator == (const Object& object) const;
iterator Begin();
iterator End();
const_iterator Begin() const;
const_iterator End() const;
size_t Size() const;
bool Empty() const;
iterator Find(const std::string& name);
const_iterator Find(const std::string& name) const;
iterator Insert(const Member& member);
iterator Insert(const Member& member, iterator itWhere);
iterator Erase(iterator itWhere);
void Clear();
UnknownElement& operator [](const std::string& name);
const UnknownElement& operator [](const std::string& name) const;
private:
class Finder;
Members m_Members;
};
/////////////////////////////////////////////////////////////////////////////////
// TrivialType_T - class template for encapsulates a simple data type, such as
// a string, number, or boolean. Provides implicit const & noncost cast operators
// for that type, allowing "DataTypeT type = trivialType;"
template <typename DataTypeT>
class TrivialType_T
{
public:
TrivialType_T(const DataTypeT& t = DataTypeT());
operator DataTypeT&();
operator const DataTypeT&() const;
DataTypeT& Value();
const DataTypeT& Value() const;
bool operator == (const TrivialType_T<DataTypeT>& trivial) const;
private:
DataTypeT m_tValue;
};
/////////////////////////////////////////////////////////////////////////////////
// Null - doesn't do much of anything but satisfy the JSON spec. It is the default
// element type of UnknownElement
class Null
{
public:
bool operator == (const Null& trivial) const;
};
////////////////////////
// TrivialType_T members
template <typename DataTypeT>
TrivialType_T<DataTypeT>::TrivialType_T(const DataTypeT& t) :
m_tValue(t) {}
template <typename DataTypeT>
TrivialType_T<DataTypeT>::operator DataTypeT&()
{
return Value();
}
template <typename DataTypeT>
TrivialType_T<DataTypeT>::operator const DataTypeT&() const
{
return Value();
}
template <typename DataTypeT>
DataTypeT& TrivialType_T<DataTypeT>::Value()
{
return m_tValue;
}
template <typename DataTypeT>
const DataTypeT& TrivialType_T<DataTypeT>::Value() const
{
return m_tValue;
}
template <typename DataTypeT>
bool TrivialType_T<DataTypeT>::operator == (const TrivialType_T<DataTypeT>& trivial) const
{
return m_tValue == trivial.m_tValue;
}
} // End namespace
//#include "elements.inl"

540
src/cajun/reader.cpp
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@ -1,540 +0,0 @@
/******************************************************************************
Copyright (c) 2009-2010, Terry Caton
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of the projecct nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
******************************************************************************/
#include <cassert>
#include <set>
#include <sstream>
#include "reader.h"
/*
TODO:
* better documentation
* unicode character decoding
*/
namespace json
{
std::istream& operator >> (std::istream& istr, UnknownElement& elementRoot) {
Reader::Read(elementRoot, istr);
return istr;
}
Reader::Location::Location() :
m_nLine(0),
m_nLineOffset(0),
m_nDocOffset(0)
{}
//////////////////////
// Reader::InputStream
class Reader::InputStream // would be cool if we could inherit from std::istream & override "get"
{
public:
InputStream(std::istream& iStr) :
m_iStr(iStr) {}
// protect access to the input stream, so we can keeep track of document/line offsets
char Get(); // big, define outside
char Peek() {
assert(m_iStr.eof() == false); // enforce reading of only valid stream data
return m_iStr.peek();
}
bool EOS() {
m_iStr.peek(); // apparently eof flag isn't set until a character read is attempted. whatever.
return m_iStr.eof();
}
const Location& GetLocation() const { return m_Location; }
private:
std::istream& m_iStr;
Location m_Location;
};
char Reader::InputStream::Get()
{
assert(m_iStr.eof() == false); // enforce reading of only valid stream data
char c = m_iStr.get();
++m_Location.m_nDocOffset;
if (c == '\n') {
++m_Location.m_nLine;
m_Location.m_nLineOffset = 0;
}
else {
++m_Location.m_nLineOffset;
}
return c;
}
//////////////////////
// Reader::TokenStream
class Reader::TokenStream
{
public:
TokenStream(const Tokens& tokens);
const Token& Peek();
const Token& Get();
bool EOS() const;
private:
const Tokens& m_Tokens;
Tokens::const_iterator m_itCurrent;
};
Reader::TokenStream::TokenStream(const Tokens& tokens) :
m_Tokens(tokens),
m_itCurrent(tokens.begin())
{}
const Reader::Token& Reader::TokenStream::Peek() {
if (EOS())
{
const Token& lastToken = *m_Tokens.rbegin();
std::string sMessage = "Unexpected end of token stream";
throw ParseException(sMessage, lastToken.locBegin, lastToken.locEnd); // nowhere to point to
}
return *(m_itCurrent);
}
const Reader::Token& Reader::TokenStream::Get() {
const Token& token = Peek();
++m_itCurrent;
return token;
}
bool Reader::TokenStream::EOS() const {
return m_itCurrent == m_Tokens.end();
}
///////////////////
// Reader (finally)
void Reader::Read(Object& object, std::istream& istr) { Read_i(object, istr); }
void Reader::Read(Array& array, std::istream& istr) { Read_i(array, istr); }
void Reader::Read(String& string, std::istream& istr) { Read_i(string, istr); }
void Reader::Read(Number& number, std::istream& istr) { Read_i(number, istr); }
void Reader::Read(Boolean& boolean, std::istream& istr) { Read_i(boolean, istr); }
void Reader::Read(Null& null, std::istream& istr) { Read_i(null, istr); }
void Reader::Read(UnknownElement& unknown, std::istream& istr) { Read_i(unknown, istr); }
template <typename ElementTypeT>
void Reader::Read_i(ElementTypeT& element, std::istream& istr)
{
Reader reader;
Tokens tokens;
InputStream inputStream(istr);
reader.Scan(tokens, inputStream);
TokenStream tokenStream(tokens);
reader.Parse(element, tokenStream);
if (tokenStream.EOS() == false)
{
const Token& token = tokenStream.Peek();
std::string sMessage = std::string("Expected End of token stream; found ") + token.sValue;
throw ParseException(sMessage, token.locBegin, token.locEnd);
}
}
void Reader::Scan(Tokens& tokens, InputStream& inputStream)
{
while (EatWhiteSpace(inputStream), // ignore any leading white space...
inputStream.EOS() == false) // ...before checking for EOS
{
// if all goes well, we'll create a token each pass
Token token;
token.locBegin = inputStream.GetLocation();
// gives us null-terminated string
char sChar = inputStream.Peek();
switch (sChar)
{
case '{':
token.sValue = MatchExpectedString(inputStream, "{");
token.nType = Token::TOKEN_OBJECT_BEGIN;
break;
case '}':
token.sValue = MatchExpectedString(inputStream, "}");
token.nType = Token::TOKEN_OBJECT_END;
break;
case '[':
token.sValue = MatchExpectedString(inputStream, "[");
token.nType = Token::TOKEN_ARRAY_BEGIN;
break;
case ']':
token.sValue = MatchExpectedString(inputStream, "]");
token.nType = Token::TOKEN_ARRAY_END;
break;
case ',':
token.sValue = MatchExpectedString(inputStream, ",");
token.nType = Token::TOKEN_NEXT_ELEMENT;
break;
case ':':
token.sValue = MatchExpectedString(inputStream, ":");
token.nType = Token::TOKEN_MEMBER_ASSIGN;
break;
case '"':
token.sValue = MatchString(inputStream);
token.nType = Token::TOKEN_STRING;
break;
case '-':
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
token.sValue = MatchNumber(inputStream);
token.nType = Token::TOKEN_NUMBER;
break;
case 't':
token.sValue = MatchExpectedString(inputStream, "true");
token.nType = Token::TOKEN_BOOLEAN;
break;
case 'f':
token.sValue = MatchExpectedString(inputStream, "false");
token.nType = Token::TOKEN_BOOLEAN;
break;
case 'n':
token.sValue = MatchExpectedString(inputStream, "null");
token.nType = Token::TOKEN_NULL;
break;
default:
{
std::string sErrorMessage = std::string("Unexpected character in stream: ") + sChar;
throw ScanException(sErrorMessage, inputStream.GetLocation());
}
}
token.locEnd = inputStream.GetLocation();
tokens.push_back(token);
}
}
void Reader::EatWhiteSpace(InputStream& inputStream)
{
while (inputStream.EOS() == false &&
::isspace(inputStream.Peek()))
inputStream.Get();
}
std::string Reader::MatchExpectedString(InputStream& inputStream, const std::string& sExpected)
{
std::string::const_iterator it(sExpected.begin()),
itEnd(sExpected.end());
for ( ; it != itEnd; ++it) {
if (inputStream.EOS() || // did we reach the end before finding what we're looking for...
inputStream.Get() != *it) // ...or did we find something different?
{
std::string sMessage = std::string("Expected string: ") + sExpected;
throw ScanException(sMessage, inputStream.GetLocation());
}
}
// all's well if we made it here
return sExpected;
}
std::string Reader::MatchString(InputStream& inputStream)
{
MatchExpectedString(inputStream, "\"");
std::string string;
while (inputStream.EOS() == false &&
inputStream.Peek() != '"')
{
char c = inputStream.Get();
// escape?
if (c == '\\' &&
inputStream.EOS() == false) // shouldn't have reached the end yet
{
c = inputStream.Get();
switch (c) {
case '/': string.push_back('/'); break;
case '"': string.push_back('"'); break;
case '\\': string.push_back('\\'); break;
case 'b': string.push_back('\b'); break;
case 'f': string.push_back('\f'); break;
case 'n': string.push_back('\n'); break;
case 'r': string.push_back('\r'); break;
case 't': string.push_back('\t'); break;
// TPT edit: eat \u0000 characters because the TPT font doesn't support them, and if we ignore it the json can't be parsed
case 'u': {
int eat = 4;
while (eat-- && inputStream.EOS() == false && inputStream.Peek() != '"')
inputStream.Get();
break;
}
default: {
std::string sMessage = std::string("Unrecognized escape sequence found in string: \\") + c;
throw ScanException(sMessage, inputStream.GetLocation());
}
}
}
else {
string.push_back(c);
}
}
// eat the last '"' that we just peeked
MatchExpectedString(inputStream, "\"");
// all's well if we made it here
return string;
}
std::string Reader::MatchNumber(InputStream& inputStream)
{
const char sNumericChars[] = "0123456789.eE-+";
std::set<char> numericChars;
numericChars.insert(sNumericChars, sNumericChars + sizeof(sNumericChars));
std::string sNumber;
while (inputStream.EOS() == false &&
numericChars.find(inputStream.Peek()) != numericChars.end())
{
sNumber.push_back(inputStream.Get());
}
return sNumber;
}
void Reader::Parse(UnknownElement& element, Reader::TokenStream& tokenStream)
{
const Token& token = tokenStream.Peek();
switch (token.nType) {
case Token::TOKEN_OBJECT_BEGIN:
{
// implicit non-const cast will perform conversion for us (if necessary)
Object& object = element;
Parse(object, tokenStream);
break;
}
case Token::TOKEN_ARRAY_BEGIN:
{
Array& array = element;
Parse(array, tokenStream);
break;
}
case Token::TOKEN_STRING:
{
String& string = element;
Parse(string, tokenStream);
break;
}
case Token::TOKEN_NUMBER:
{
Number& number = element;
Parse(number, tokenStream);
break;
}
case Token::TOKEN_BOOLEAN:
{
Boolean& boolean = element;
Parse(boolean, tokenStream);
break;
}
case Token::TOKEN_NULL:
{
Null& null = element;
Parse(null, tokenStream);
break;
}
default:
{
std::string sMessage = std::string("Unexpected token: ") + token.sValue;
throw ParseException(sMessage, token.locBegin, token.locEnd);
}
}
}
void Reader::Parse(Object& object, Reader::TokenStream& tokenStream)
{
MatchExpectedToken(Token::TOKEN_OBJECT_BEGIN, tokenStream);
bool bContinue = (tokenStream.EOS() == false &&
tokenStream.Peek().nType != Token::TOKEN_OBJECT_END);
while (bContinue)
{
Object::Member member;
// first the member name. save the token in case we have to throw an exception
const Token& tokenName = tokenStream.Peek();
member.name = MatchExpectedToken(Token::TOKEN_STRING, tokenStream);
// ...then the key/value separator...
MatchExpectedToken(Token::TOKEN_MEMBER_ASSIGN, tokenStream);
// ...then the value itself (can be anything).
Parse(member.element, tokenStream);
// try adding it to the object (this could throw)
try
{
object.Insert(member);
}
catch (Exception&)
{
// must be a duplicate name
std::string sMessage = std::string("Duplicate object member token: ") + member.name;
throw ParseException(sMessage, tokenName.locBegin, tokenName.locEnd);
}
bContinue = (tokenStream.EOS() == false &&
tokenStream.Peek().nType == Token::TOKEN_NEXT_ELEMENT);
if (bContinue)
MatchExpectedToken(Token::TOKEN_NEXT_ELEMENT, tokenStream);
}
MatchExpectedToken(Token::TOKEN_OBJECT_END, tokenStream);
}
void Reader::Parse(Array& array, Reader::TokenStream& tokenStream)
{
MatchExpectedToken(Token::TOKEN_ARRAY_BEGIN, tokenStream);
bool bContinue = (tokenStream.EOS() == false &&
tokenStream.Peek().nType != Token::TOKEN_ARRAY_END);
while (bContinue)
{
// ...what's next? could be anything
Array::iterator itElement = array.Insert(UnknownElement());
UnknownElement& element = *itElement;
Parse(element, tokenStream);
bContinue = (tokenStream.EOS() == false &&
tokenStream.Peek().nType == Token::TOKEN_NEXT_ELEMENT);
if (bContinue)
MatchExpectedToken(Token::TOKEN_NEXT_ELEMENT, tokenStream);
}
MatchExpectedToken(Token::TOKEN_ARRAY_END, tokenStream);
}
void Reader::Parse(String& string, Reader::TokenStream& tokenStream)
{
string = MatchExpectedToken(Token::TOKEN_STRING, tokenStream);
}
void Reader::Parse(Number& number, Reader::TokenStream& tokenStream)
{
const Token& currentToken = tokenStream.Peek(); // might need this later for throwing exception
const std::string& sValue = MatchExpectedToken(Token::TOKEN_NUMBER, tokenStream);
std::istringstream iStr(sValue);
double dValue;
iStr >> dValue;
// did we consume all characters in the token?
if (iStr.eof() == false)
{
char c = iStr.peek();
std::string sMessage = std::string("Unexpected character in NUMBER token: ") + c;
throw ParseException(sMessage, currentToken.locBegin, currentToken.locEnd);
}
number = dValue;
}
void Reader::Parse(Boolean& boolean, Reader::TokenStream& tokenStream)
{
const std::string& sValue = MatchExpectedToken(Token::TOKEN_BOOLEAN, tokenStream);
boolean = (sValue == "true" ? true : false);
}
void Reader::Parse(Null&, Reader::TokenStream& tokenStream)
{
MatchExpectedToken(Token::TOKEN_NULL, tokenStream);
}
const std::string& Reader::MatchExpectedToken(Token::Type nExpected, Reader::TokenStream& tokenStream)
{
const Token& token = tokenStream.Get();
if (token.nType != nExpected)
{
std::string sMessage = std::string("Unexpected token: ") + token.sValue;
throw ParseException(sMessage, token.locBegin, token.locEnd);
}
return token.sValue;
}
} // End namespace

148
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/******************************************************************************
Copyright (c) 2009-2010, Terry Caton
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of the projecct nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
******************************************************************************/
#pragma once
#include <iostream>
#include <vector>
#include "elements.h"
namespace json
{
class Reader
{
public:
// this structure will be reported in one of the exceptions defined below
struct Location
{
Location();
unsigned int m_nLine; // document line, zero-indexed
unsigned int m_nLineOffset; // character offset from beginning of line, zero indexed
unsigned int m_nDocOffset; // character offset from entire document, zero indexed
};
// thrown during the first phase of reading. generally catches low-level problems such
// as errant characters or corrupt/incomplete documents
class ScanException : public Exception
{
public:
ScanException(const std::string& sMessage, const Reader::Location& locError) :
Exception(sMessage),
m_locError(locError) {}
Reader::Location m_locError;
};
// thrown during the second phase of reading. generally catches higher-level problems such
// as missing commas or brackets
class ParseException : public Exception
{
public:
ParseException(const std::string& sMessage, const Reader::Location& locTokenBegin, const Reader::Location& locTokenEnd) :
Exception(sMessage),
m_locTokenBegin(locTokenBegin),
m_locTokenEnd(locTokenEnd) {}
Reader::Location m_locTokenBegin;
Reader::Location m_locTokenEnd;
};
// if you know what the document looks like, call one of these...
static void Read(Object& object, std::istream& istr);
static void Read(Array& array, std::istream& istr);
static void Read(String& string, std::istream& istr);
static void Read(Number& number, std::istream& istr);
static void Read(Boolean& boolean, std::istream& istr);
static void Read(Null& null, std::istream& istr);
// ...otherwise, if you don't know, call this & visit it
static void Read(UnknownElement& elementRoot, std::istream& istr);
private:
struct Token
{
enum Type
{
TOKEN_OBJECT_BEGIN, // {
TOKEN_OBJECT_END, // }
TOKEN_ARRAY_BEGIN, // [
TOKEN_ARRAY_END, // ]
TOKEN_NEXT_ELEMENT, // ,
TOKEN_MEMBER_ASSIGN, // :
TOKEN_STRING, // "xxx"
TOKEN_NUMBER, // [+/-]000.000[e[+/-]000]
TOKEN_BOOLEAN, // true -or- false
TOKEN_NULL, // null
};
Type nType;
std::string sValue;
// for malformed file debugging
Reader::Location locBegin;
Reader::Location locEnd;
};
class InputStream;
class TokenStream;
typedef std::vector<Token> Tokens;
template <typename ElementTypeT>
static void Read_i(ElementTypeT& element, std::istream& istr);
// scanning istream into token sequence
void Scan(Tokens& tokens, InputStream& inputStream);
void EatWhiteSpace(InputStream& inputStream);
std::string MatchString(InputStream& inputStream);
std::string MatchNumber(InputStream& inputStream);
std::string MatchExpectedString(InputStream& inputStream, const std::string& sExpected);
// parsing token sequence into element structure
void Parse(UnknownElement& element, TokenStream& tokenStream);
void Parse(Object& object, TokenStream& tokenStream);
void Parse(Array& array, TokenStream& tokenStream);
void Parse(String& string, TokenStream& tokenStream);
void Parse(Number& number, TokenStream& tokenStream);
void Parse(Boolean& boolean, TokenStream& tokenStream);
void Parse(Null& null, TokenStream& tokenStream);
const std::string& MatchExpectedToken(Token::Type nExpected, TokenStream& tokenStream);
};
} // End namespace
//#include "reader.inl"

65
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/******************************************************************************
Copyright (c) 2009-2010, Terry Caton
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of the projecct nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
******************************************************************************/
#pragma once
#include "elements.h"
namespace json
{
class Visitor
{
public:
virtual ~Visitor() {}
virtual void Visit(Array& array) = 0;
virtual void Visit(Object& object) = 0;
virtual void Visit(Number& number) = 0;
virtual void Visit(String& string) = 0;
virtual void Visit(Boolean& boolean) = 0;
virtual void Visit(Null& null) = 0;
};
class ConstVisitor
{
public:
virtual ~ConstVisitor() {}
virtual void Visit(const Array& array) = 0;
virtual void Visit(const Object& object) = 0;
virtual void Visit(const Number& number) = 0;
virtual void Visit(const String& string) = 0;
virtual void Visit(const Boolean& boolean) = 0;
virtual void Visit(const Null& null) = 0;
};
} // End namespace

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/******************************************************************************
Copyright (c) 2009-2010, Terry Caton
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of the projecct nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
******************************************************************************/
#include <iostream>
#include <iomanip>
#include "writer.h"
/*
TODO:
* better documentation
* unicode character encoding
*/
namespace json
{
void Writer::Write(const UnknownElement& elementRoot, std::ostream& ostr) { Write_i(elementRoot, ostr); }
void Writer::Write(const Object& object, std::ostream& ostr) { Write_i(object, ostr); }
void Writer::Write(const Array& array, std::ostream& ostr) { Write_i(array, ostr); }
void Writer::Write(const Number& number, std::ostream& ostr) { Write_i(number, ostr); }
void Writer::Write(const String& string, std::ostream& ostr) { Write_i(string, ostr); }
void Writer::Write(const Boolean& boolean, std::ostream& ostr) { Write_i(boolean, ostr); }
void Writer::Write(const Null& null, std::ostream& ostr) { Write_i(null, ostr); }
Writer::Writer(std::ostream& ostr) :
m_ostr(ostr),
m_nTabDepth(0)
{}
template <typename ElementTypeT>
void Writer::Write_i(const ElementTypeT& element, std::ostream& ostr)
{
Writer writer(ostr);
writer.Write_i(element);
ostr.flush(); // all done
}
void Writer::Write_i(const Array& array)
{
if (array.Empty())
m_ostr << "[]";
else
{
m_ostr << '[' << std::endl;
++m_nTabDepth;
Array::const_iterator it(array.Begin()),
itEnd(array.End());
while (it != itEnd) {
m_ostr << std::string(m_nTabDepth, '\t');
Write_i(*it);
if (++it != itEnd)
m_ostr << ',';
m_ostr << std::endl;
}
--m_nTabDepth;
m_ostr << std::string(m_nTabDepth, '\t') << ']';
}
}
void Writer::Write_i(const Object& object)
{
if (object.Empty())
m_ostr << "{}";
else
{
m_ostr << '{' << std::endl;
++m_nTabDepth;
Object::const_iterator it(object.Begin()),
itEnd(object.End());
while (it != itEnd) {
m_ostr << std::string(m_nTabDepth, '\t');
Write_i(it->name);
m_ostr << " : ";
Write_i(it->element);
if (++it != itEnd)
m_ostr << ',';
m_ostr << std::endl;
}
--m_nTabDepth;
m_ostr << std::string(m_nTabDepth, '\t') << '}';
}
}
void Writer::Write_i(const Number& numberElement)
{
m_ostr << std::setprecision(20) << numberElement.Value();
}
void Writer::Write_i(const Boolean& booleanElement)
{
m_ostr << (booleanElement.Value() ? "true" : "false");
}
void Writer::Write_i(const String& stringElement)
{
m_ostr << '"';
const std::string& s = stringElement.Value();
std::string::const_iterator it(s.begin()),
itEnd(s.end());
for (; it != itEnd; ++it)
{
switch (*it)
{
case '"': m_ostr << "\\\""; break;
case '\\': m_ostr << "\\\\"; break;
case '\b': m_ostr << "\\b"; break;
case '\f': m_ostr << "\\f"; break;
case '\n': m_ostr << "\\n"; break;
case '\r': m_ostr << "\\r"; break;
case '\t': m_ostr << "\\t"; break;
//case '\u': m_ostr << "\\u"; break; // uh...
default: m_ostr << *it; break;
}
}
m_ostr << '"';
}
void Writer::Write_i(const Null& )
{
m_ostr << "null";
}
void Writer::Write_i(const UnknownElement& unknown)
{
unknown.Accept(*this);
}
void Writer::Visit(const Array& array) { Write_i(array); }
void Writer::Visit(const Object& object) { Write_i(object); }
void Writer::Visit(const Number& number) { Write_i(number); }
void Writer::Visit(const String& string) { Write_i(string); }
void Writer::Visit(const Boolean& boolean) { Write_i(boolean); }
void Writer::Visit(const Null& null) { Write_i(null); }
} // End namespace

78
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@ -1,78 +0,0 @@
/******************************************************************************
Copyright (c) 2009-2010, Terry Caton
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of the projecct nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
******************************************************************************/
#pragma once
#include "elements.h"
#include "visitor.h"
namespace json
{
class Writer : private ConstVisitor
{
public:
static void Write(const Object& object, std::ostream& ostr);
static void Write(const Array& array, std::ostream& ostr);
static void Write(const String& string, std::ostream& ostr);
static void Write(const Number& number, std::ostream& ostr);
static void Write(const Boolean& boolean, std::ostream& ostr);
static void Write(const Null& null, std::ostream& ostr);
static void Write(const UnknownElement& elementRoot, std::ostream& ostr);
private:
Writer(std::ostream& ostr);
template <typename ElementTypeT>
static void Write_i(const ElementTypeT& element, std::ostream& ostr);
void Write_i(const Object& object);
void Write_i(const Array& array);
void Write_i(const String& string);
void Write_i(const Number& number);
void Write_i(const Boolean& boolean);
void Write_i(const Null& null);
void Write_i(const UnknownElement& unknown);
virtual void Visit(const Array& array);
virtual void Visit(const Object& object);
virtual void Visit(const Number& number);
virtual void Visit(const String& string);
virtual void Visit(const Boolean& boolean);
virtual void Visit(const Null& null);
std::ostream& m_ostr;
int m_nTabDepth;
};
} // End namespace
//#include "writer.inl"